EP 2853715 B1 20170607 - AXIAL FLOW TURBINE FOR A TURBOCHARGER
Title (en)
AXIAL FLOW TURBINE FOR A TURBOCHARGER
Title (de)
AXIALSTROMTURBINE FÜR TURBOLADER
Title (fr)
TURBINE À FLUX AXIAL POUR TURBO-COMPRESSEUR
Publication
Application
Priority
JP 2012072193 W 20120831
Abstract (en)
[origin: EP2853715A1] An object is to provide an axial-flow turbine for a turbocharger in which low-temperature outside air or lubricant oil does not flow backward into a gas flow path from a gap between an upstream end face of a hub part and a housing end face. An axial-flow turbine for a turbocharger 1 includes a bearing 2, a rotational shaft 4 supported rotatably by the bearing, a hub part 6 disposed on an axial end of the rotational shaft, a turbine wheel 10 having a plurality of rotor blades 8 protruding outwardly in a radial direction from a circumferential face 6a of the hub part; and a housing 10 which houses the turbine wheel and which at least includes a rotational shaft housing section 26 accommodating the rotational shaft, a scroll part 22 which swirls gas having been introduced into the housing around the rotational shaft, and a bend section 24 which is formed around the rotational shaft housing section and configured to direct gas having flowed out from an outlet 22a of the scroll part in an axial direction. The housing includes a bypass flow path 40 disposed at an upstream side with respect to a housing end face 20a facing an upstream end face 6b of the hub part of the turbine wheel and through which the bend section and the rotational shaft housing section are in communication with each other.
IPC 8 full level
F02B 39/00 (2006.01); F02C 6/12 (2006.01)
CPC (source: EP US)
F01D 9/026 (2013.01 - US); F01D 11/04 (2013.01 - EP US); F01D 17/105 (2013.01 - EP US); F01D 25/24 (2013.01 - EP US); F02B 39/00 (2013.01 - EP US); F02C 6/12 (2013.01 - EP US); F05D 2220/40 (2013.01 - EP US); F05D 2260/606 (2013.01 - EP US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 2853715 A1 20150401; EP 2853715 A4 20150805; EP 2853715 B1 20170607; CN 104487673 A 20150401; CN 104487673 B 20161109; JP 5281724 B1 20130904; JP WO2014033920 A1 20160808; US 2015167543 A1 20150618; US 9677463 B2 20170613; WO 2014033920 A1 20140306
DOCDB simple family (application)
EP 12883498 A 20120831; CN 201280074893 A 20120831; JP 2012072193 W 20120831; JP 2013509372 A 20120831; US 201214410419 A 20120831